Concept explainers
(a)
Interpretation:
The structure of methyl
Concept introduction:
Methyl
(b)
Interpretation:
The structure of
Concept introduction
The molecular formula of
Pyranose is a six membered cyclic hemiacetal form of sugar.
(c)
Interpretation:
The structure of
Concept introduction:
Furanose is a five membered cyclic hemiacetal form of a sugar. It consists of four carbon atoms and one oxygen atoms. Furanose rings have alpha and beta configuration.
(d)
Interpretation:
The structure of
Concept introduction:
Pyranoside is a six membered glycoside. A cyclic acetal form of sugar is known as glycoside. It is a non reducing sugar. Glycosides are generally furanosides or pyranosides.
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Organic Chemistry Plus Masteringchemistry With Pearson Etext, Global Edition
- a. In an aqueous solution, d-glucose exists in equilibrium with two six-membered ring compounds. Draw the structures of these compounds.b. Which of the six-membered ring compounds will be the major product?arrow_forwardDraw the products formed when ß-D-galactose is treated with each reagent.a. Ag2O + CH3Ib. NaH + C6H5CH2Clc. The product in (b), then H3O+d. Ac2O + pyridinee. C6H5COCl + pyridinef. The product in (c), then C6H5COCl + pyridinearrow_forwarda. Classify this sugar based on its structural characteristics. A possible answer might look something like D-aldopentose. Н ОН Н CH2OH ОН OHarrow_forward
- Consider the tetrasaccharide stachyose drawn below. Stachyose is found in white jasmine, soybeans, and lentils. Because humans cannot digest it, its consumption causes flatulence.a. Label all glycoside bonds.b. Classify each glycosidic linkage as α or β and use numbers to designate its location between two rings (e.g., 1→4-β).c. What products are formed when stachyose is hydrolyzed with H3O+?d. Is stachyose a reducing sugar?e. What product is formed when stachyose is treated with excess CH3I, Ag2O?f. What products are formed when the product in (e) is treated with H3O+?arrow_forward1. Consider the following molecules. Clearly circle the glycosidic bond on each structure. In the Spae provided clearly describe the type of glycosidic bond illustrated. HO-CH2 O. H. H. OH HO. HO-CH2 OH H. H. H. OH H. OH Но H. H. H. OH OH HOH2Ç HO OH OH CH2OH HI エー エエーarrow_forwardConsider the tetrasaccharide stachyose drawn below. Stachyose is found in white jasmine, soybeans, and lentils. Because humans cannot digest it, its consumption causes flatulence.a. Label all glycoside bonds.b. Classify each glycosidic linkage as αα or ββ and use numbers to designate its location between two rings (e.g., 1→→4-ββ)-c. What products are formed when stachyose is hydrolyzed with H33O++?d. Is stachyose a reducing sugar?e. What product is formed when stachyose is treated with excess CH33I, Ag22O?f. What products are formed when the product in (e) is treated with H33O++?arrow_forward
- 2. Draw the two aldohexoses and one ketohexose that can be derived from the enol shown below. HC OH но H- HO- HO ČH,OH 3. Classify the following monosaccharides as reducing and nonreducing sugars. CH,OH CH,OH CH,OH OH он но - HO- OH OH HO он OH OH ČH,OH II III 4. Identify and name the glycosidic bond in the structure shown below. CH,OH OH OH онarrow_forwardIn an aqueous solution, d-glucose exists in equilibrium with two six-membered ring compounds. a.Draw the structures of these compounds. b. Which of the six-membered ring compounds will be the major product?arrow_forwardThe carbonyl group on D-glucose can be reduced to d-glucitol. Identify the reagents that can chrry out this reduction. A.water in acidic solution B. hydrogen with a Platinum catalyst (Hy/Pt) C. Sodium dichromate (NaCr2O) in acidic solution D. Benedict’s reagent E. Enzymesarrow_forward
- What is the function of lyases? a. to catalyze redox reactions b. They catalyze reactions in which H₂O, NH3 and CO2 groups are removed c. They catalyze hydrolysis reactions. D. transfer active groupsarrow_forwardConsider the structure of carbohydrate, MANNY,arrow_forwardWhich sugar will yield a single alditol upon reduction? A. Rhamnose B. Sorbose C. Xylulose D. Erythrulosearrow_forward
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning